convenience api

crates/ra_syntax/src/syntax_node.rs

@@ -423,6 +423,13 @@ impl SyntaxElement {
         }
     }
 
+    pub fn into_node(self) -> Option<SyntaxNode> {
+        match self {
+            SyntaxElement::Node(node) => Some(node),
+            SyntaxElement::Token(_) => None,
+        }
+    }
+
     pub fn as_token(&self) -> Option<&SyntaxToken> {
         match self {
             SyntaxElement::Node(_) => None,
@@ -430,6 +437,13 @@ impl SyntaxElement {
         }
     }
 
+    pub fn into_token(self) -> Option<SyntaxToken> {
+        match self {
+            SyntaxElement::Node(_) => None,
+            SyntaxElement::Token(token) => Some(token),
+        }
+    }
+
     pub fn next_sibling_or_token(&self) -> Option<SyntaxElement> {
         match self {
             SyntaxElement::Node(it) => it.next_sibling_or_token(),